公开(公告)号：US20080129216A1

公开(公告)日：2008-06-05

申请号：US11719006

申请日：2005-11-09

申请人： Yuhong Fang ,  Michael Y. Zhang ,  Ramakrishnan Venkatraman ,  Romel Panlilio ,  Ganesh Arun ,  Rohit Khetarpal

发明人： Yuhong Fang ,  Michael Y. Zhang ,  Ramakrishnan Venkatraman ,  Romel Panlilio ,  Ganesh Arun ,  Rohit Khetarpal

IPC分类号： H05B41/298

CPC分类号： H05B41/2988

摘要： An anti-striation circuit employs an inverter topology including a pair of electronic switches (Q, M) that are switched between a conducting state and a nonconducting state in an alternating manner to apply an asymmetrical voltage waveform across one or more lamp (LP) to thereby control a flow of an asymmetrical current waveform (iacc) through lamps (LP). To eliminate, if not minimize, visible striations in the lamp(s) (LP), the impedances of an asymmetrical driver as connected to the control inputs (B, G) of the electronic switches (Q, M) may be unequal, and/or the impedances of an asymmetrical driver as connected to the current paths (C-E, D-S) of the electronic switches (Q, M) may be unequal. Additionally, the current gains of the electronic switches (Q, M) may be unequal, and a DC current may flow through the lamp(s) (LP).

摘要翻译： 抗条纹电路采用包括一对电子开关（Q，M）的逆变器拓扑，其以交替方式在导通状态和非导通状态之间切换，以将一个或多个灯（LP）上的非对称电压波形施加到 从而通过灯（LP）控制不对称电流波形的流动（I SUB）。 为了消除灯泡（LP）中的可见条纹（如果不是最小化），连接到电子开关（Q，M）的控制输入（B，G）的不对称驱动器的阻抗可能是不相等的，并且 /或连接到电子开关（Q，M）的电流路径（CE，DS））的不对称驱动器的阻抗可能不相等。 此外，电子开关（Q，M）的电流增益可能不相等，并且DC电流可能流过灯（LP）。

公开(公告)号：US07868559B2

公开(公告)日：2011-01-11

申请号：US11720844

申请日：2005-12-08

申请人： Ramakrishnan Venkatraman ,  Romel Panlilio

发明人： Ramakrishnan Venkatraman ,  Romel Panlilio

IPC分类号： H05B37/02

CPC分类号： H05B41/245 ,  H05B41/282 ,  Y02B20/183

摘要： An electronic ballast with higher startup voltage includes converter with a switching circuit (40) responsive to a switching control signal (50) and operably connected to a DC bus (30); a DC controller (44) comparing a sensed DC bus voltage signal and a reference DC bus voltage signal to generate the switching control signal (50); and a startup adjustor operably connected to the DC controller (44) to adjust at least one of the sensed DC bus voltage signal and the reference DC bus voltage signal for a predetermined time at startup so that startup DC bus voltage is greater than steady state DC bus voltage.

摘要翻译： 具有较高启动电压的电子镇流器包括具有响应于开关控制信号（50）并且可操作地连接到DC总线（30）的开关电路（40）的转换器; 比较感测的直流母线电压信号和基准直流母线电压信号以产生开关控制信号的直流控制器（44）; 以及启动调节器，其可操作地连接到所述DC控制器（44），以在启动时调整所感测的直流母线电压信号和所述参考DC总线电压信号中的至少一个预定时间，使得启动DC总线电压大于稳态DC 总线电压。

公开(公告)号：US08184457B2

公开(公告)日：2012-05-22

申请号：US12375229

申请日：2007-07-26

申请人： Yimin Chen ,  Yuhong Fang ,  Romel Panlilio ,  Arun Ganesh

发明人： Yimin Chen ,  Yuhong Fang ,  Romel Panlilio ,  Arun Ganesh

IPC分类号： G05F1/00 ,  H02H7/10

CPC分类号： H02M7/2176 ,  H02M1/32 ,  H02M1/42 ,  H02M3/1582 ,  Y02B70/12

摘要： A switch mode power supply (15) employs a rectifier (20), a converter (50) and converter driver (60). The rectifier (20) generates a rectified supply voltage (VRS) based on an in-line voltage (VLN), and the converter driver (60) generates one or more driving voltages (VDR) to facilitate a conversion by the converter (50) of the rectified supply voltage (VRS) to a DC bus voltage (VDC) based on the driving voltage(s) (VDR). The converter (50) may include a transient voltage suppression device (52) to suppress the rectified supply voltage (VRS) in response to an abnormal line condition of the switch mode power supply (15), and the converter driver (60) may include a free-oscillating suppression device (61) to suppress the one or more driving voltages (VDR) in response to a free-oscillating condition of the converter driver (60).

摘要翻译： 开关模式电源（15）采用整流器（20），转换器（50）和转换器驱动器（60）。 整流器（20）基于在线电压（VLN）产生整流电源电压（VRS），并且转换器驱动器（60）产生一个或多个驱动电压（VDR）以便于转换器（50）的转换， 基于驱动电压（VDR）将整流后的电源电压（VRS）提供给直流总线电压（VDC）。 转换器（50）可以包括瞬态电压抑制装置（52），以响应于开关模式电源（15）的异常线路状况来抑制整流的电源电压（VRS），并且转换器驱动器（60）可以包括 自由振荡抑制装置（61），用于响应于转换器驱动器（60）的自由振荡状态来抑制一个或多个驱动电压（VDR）。

公开(公告)号：US20090224696A1

公开(公告)日：2009-09-10

申请号：US11720844

申请日：2005-12-08

申请人： Ramakrishnan Venkatraman ,  Romel Panlilio

发明人： Ramakrishnan Venkatraman ,  Romel Panlilio

IPC分类号： H05B41/36

CPC分类号： H05B41/245 ,  H05B41/282 ,  Y02B20/183

摘要： An electronic ballast with higher startup voltage includes converter with a switching circuit (40) responsive to a switching control signal (50) and operably connected to a DC bus (30); a DC controller (44) comparing a sensed DC bus voltage signal and a reference DC bus voltage signal to generate the switching control signal (50); and a startup adjustor operably connected to the DC controller (44) to adjust at least one of the sensed DC bus voltage signal and the reference DC bus voltage signal for a predetermined time at startup so that startup DC bus voltage is greater than steady state DC bus voltage.

摘要翻译： 具有较高启动电压的电子镇流器包括具有响应于开关控制信号（50）并且可操作地连接到DC总线（30）的开关电路（40）的转换器; 比较感测的直流母线电压信号和基准直流母线电压信号以产生开关控制信号的直流控制器（44）; 以及启动调节器，其可操作地连接到所述DC控制器（44），以在启动时调整所感测的直流总线电压信号和所述参考DC总线电压信号中的至少一个预定时间，使得启动DC总线电压大于稳态DC 总线电压。

公开(公告)号：US06628091B2

公开(公告)日：2003-09-30

申请号：US09867261

申请日：2001-05-29

申请人： John Griffin ,  Romel Panlilio ,  Sreeraman Venkitasubrahmanian

发明人： John Griffin ,  Romel Panlilio ,  Sreeraman Venkitasubrahmanian

IPC分类号： G05F100

CPC分类号： H05B41/42 ,  H05B41/2827

摘要： The present invention provides electronic switching for a bi-level fluorescent lamp fixture that allows power to be switched on and off to a group of lamps in a fixture when more or less illumination is needed in an area. The power can be switched without the need to power down the fixture when switching from high level with all lamps illuminated to a low level with only part of the lamps illuminated. The lamp current or frequency can be adjusted to save power when only part of the lamps are illuminated.